no certainly not, the collision is effective is the collision occur with adequate energy and at proper angle ( also known as collision theory).
The key is to recognize that "the angle of INCIDENCE is equal to the angle of REFLECTION", for an 'Elastic' collision. So the answer is 20 degrees.
Total internal reflection occurs when the angle of incidence with respect to the normal at the boundary to a less dense medium exceeds the critical angle.
The front sensors must detect a full frontal crash. If it is a bit off center angle there is a possibility that they may not deploy as the energy required to cause deployment is dissipated .
It the angle between fault current and voltage at the point where the fault occurs.
Acute angle glaucoma occurs in one in 1,000 individuals
Relaxation time= mean collision time/(1-) where A is the average angle of scattering that the electron makes with its initial direction
It is always refracted, but at an angle so that it goes back into the original medium. This phenomenon is called Total Internal Reflection. The angle that this occurs at is called the critical angle.
Refraction and partial internal reflection occurs